chamilo-lms2/main/admin/archive_cleanup.php

<?php
/* For licensing terms, see /license.txt */
/**
 *   @package chamilo.admin
 */
// resetting the course id
$cidReset = true;

// including some necessary files
require_once __DIR__.'/../inc/global.inc.php';

// setting the section (for the tabs)
$this_section = SECTION_PLATFORM_ADMIN;

// Access restrictions
api_protect_admin_script(true);

// setting breadcrumbs
$interbreadcrumb[] = array('url' => 'index.php', 'name' => get_lang('PlatformAdmin'));

$form = new FormValidator(
    'archive_cleanup_form',
    'post',
    '',
    '',
    array(),
    FormValidator::LAYOUT_BOX
);
$form->addButtonSend(get_lang('ArchiveDirCleanupProceedButton'));

if ($form->validate()) {
    $archive_path = api_get_path(SYS_ARCHIVE_PATH);
    $htaccess = @file_get_contents($archive_path.'.htaccess');
    $result = rmdirr($archive_path, true, true);
    try {
        \Chamilo\CoreBundle\Composer\ScriptHandler::dumpCssFiles();
    } catch (Exception $e) {
        error_log($e->getMessage());
    }

    if (!empty($htaccess)) {
        @file_put_contents($archive_path.'/.htaccess', $htaccess);
    }

    if (function_exists('opcache_reset')) {
        opcache_reset();
    }

    if ($result) {
        Display::addFlash(Display::return_message(get_lang('ArchiveDirCleanupSucceeded')));
    } else {
        Display::addFlash(Display::return_message(get_lang('ArchiveDirCleanupFailed'), 'error'));
    }

    header('Location: '.api_get_self());
    exit;
}

Display::display_header(get_lang('ArchiveDirCleanup'));
echo Display::return_message(get_lang('ArchiveDirCleanupDescr'), 'warning');
$form->display();
Display::display_footer();